Microsoft co-founder Bill Gates said he was dissatisfied with the innovation at Microsoft and lamented losing the lead in the mobile phone market.
Looking tanned and relaxed in a recent CBS interview, Gates, who still holds the role of chairman of Microsoft, said he and chief executive Steve Ballmer were "two of the most self-critical people you can imagine".
"There are lots of amazing things that Steve's leadership has done with the company over the past year," he said. "Windows 8 is key to the future, the Surface computer and Bing – people are seeing it as a better search product.
"But is it enough? No. He and I are not satisfied in terms of breakthrough things, that we are doing enough."
Gates (pictured) added that there were "lots of things" such as mobile phones where Microsoft did not get into the market early enough.
"We have not missed cell phones," he said. "But the way we went about it did not allow us to get leadership."
And to anyone external who has been critical of Microsoft, he said: "We appreciate the advice."
Watch the full interview, where he also discusses the Bill and Melinda Gates Foundation, here.
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